LM330T-5.0

LM330 3-Terminal Positive Regulator General Description Features The LM330 5V 3-terminal positive voltage regulator features an ability to source 150 mA of output current with an input-output differential of 0.6V or less. Familiar regulator features such as current limit and thermal overload protection are also provided. The low dropout voltage makes the LM330 useful for certain battery applications since this feature allows a longer battery discharge before the output falls out of regulation. For example, a battery supplying the regulator input voltage may discharge to 5.6V and still properly regulate the system and load voltage. Supporting this feature, the LM330 protects both itself and regulated systems from negative voltage inputs resulting from reverse installations of batteries. Other protection features include line transient protection up to 26V, when the output actually shuts down to avoid damaging internal and external circuits. Also, the LM330 regulator cannot be harmed by a temporary mirror-image insertion. n n n n n n n n Input-output differential less than 0.6V Output current of 150 mA Reverse battery protection Line transient protection Internal short circuit current limit Internal thermal overload protection Mirror-image insertion protection P+ Product Enhancement tested Schematic and Connection Diagrams DS009306-1 (TO-220) Plastic Package DS009306-2 Front View Order Number LM330T-5.0 See NS Package Number T03B © 1999 National Semiconductor Corporation DS009306 www.national.com LM330 3-Terminal Positive Regulator May 1998 Absolute Maximum Ratings (Note 1) Internal Power Dissipation Operating Temperature Range Maximum Junction Temperature Storage Temperature Range Lead Temperature (Soldering, 10 sec.) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Input Voltage Operating Range Line Transient Protection (1000 ms) 26V 40V Internally Limited 0˚C to +70˚C +125˚C −65˚C to +150˚C +300˚C Electrical Characteristics (Note 2) Symbol Vo ∆Vo Parameter Min Typ Max Tj = 25˚C 4.8 5 5.2 Output Voltage 5 < Io < 150 mA 4.75 Over Temp 6 < VIN < 26V; 0˚C ≤ Tj ≤ 100˚C 9 < VIN < 16V, Io = 5 mA 7 25 6 < VIN < 26V, Io = 5 mA 30 60 5 < Io < 150 mA 14 50 Io = 10 mA Io = 50 mA Io = 150 mA 3.5 14 Reverse Polarity VIN = 40V, RL = 100Ω, 1s VIN = −6V, RL = 100Ω −80 Quiescent Current 6 < VIN < 26V 10 Output Voltage Line Regulation Load Regulation Conditions Long Term Stability IQ Quiescent Current Line Transient ∆IQ 5.25 20 Units V mV mV/1000 hrs 7 5 11 18 40 mA % Change VIN Overvoltage Shutdown 26 38 Voltage Max Line Transient 60 V 1s, Vo ≤ 5.5V 50 Input Voltage DC Vo > − 0.3V, RL = 100Ω −12 Output Noise Voltage 10 Hz–100 kHz Io = 100 mADC + 10 mArms 50 µV 200 mΩ Reverse Polarity Output Impedance −30 Ripple Rejection 56 Current Limit 150 dB 400 700 0.32 0.6 Dropout Voltage Io = 150 mA Thermal Resistance Junction to Case 4 Junction to Ambient 50 mA V ˚C/W Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Note 2: Unless otherwise specified: VIN = 14V, Io = 150 mA, Tj = 25˚C, C1 = 0.1 µF, C2 = 10 µF. All characteristics except noise voltage and ripple rejection are measured using pulse techniques (tW ≤ 10 ms, duty cycle ≤ 5%). Output voltage changes due to changes in internal temperature must be taken into account separately. www.national.com 2 Typical Performance Characteristics Dropout Voltage Dropout Voltage Low Voltage Behavior DS009306-7 High Voltage Behavior DS009306-8 Line Transient Response Load Transient Response Quiescent Current DS009306-13 Quiescent Current DS009306-12 DS009306-11 DS009306-10 Peak Output Current DS009306-9 Quiescent Current DS009306-14 Ripple Rejection DS009306-15 Ripple Rejection DS009306-16 DS009306-17 3 DS009306-18 www.national.com Typical Performance Characteristics Output Impedance (Continued) Overvoltage Supply Current DS009306-19 Output at Reverse Supply DS009306-20 Output at Overvoltage Reverse Supply Current DS009306-21 Output Voltage (Normalized to 5V at Tj = 25˚C) DS009306-23 DS009306-22 DS009306-24 Typical Applications The LM330 is designed specifically to operate at lower input to output voltages. The device is designed utilizing a power lateral PNP transistor which reduces dropout voltage from 2.0V to 0.3V when compared to IC regulators using NPN pass transistors. Since the LM330 can operate at a much lower input voltage, the device power dissipation is reduced, heat sinking can be simpler and device reliability improved through lower chip operating temperature. Also, a cost savings can be utilized through use of lower power/voltage components. In applications utilizing battery power, the LM330 allows the battery voltage to drop to within 0.3V of output voltage prior to the voltage regulator dropping out of regulation. DS009306-6 Note: Compared to IC regulator with 2.0V dropout voltage and IQmax, = 6.0 mA. DS009306-5 * Required if regulator is located far from power supply filter. ** C2 may be either an Aluminum or Tantalum type capacitor but must be rated to operate at −40˚C to guarantee regulator stability to that temperature extreme. 10 µF is the minimum value required for stability and may be increased without bound. Locate as close as possible to the regulation. www.national.com 4 LM330 3-Terminal Positive Regulator Physical Dimensions inches (millimeters) unless otherwise noted TO Plastic Package Order Number LM330T-5.0 NS Package Number T03B LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com www.national.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 1 80-530 85 85 English Tel: +49 (0) 1 80-532 78 32 Français Tel: +49 (0) 1 80-532 93 58 Italiano Tel: +49 (0) 1 80-534 16 80 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 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